55875643 has 2 divisors, whose sum is σ = 55875644. Its totient is φ = 55875642.

The previous prime is 55875641. The next prime is 55875649. The reversal of 55875643 is 34657855.

55875643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55875643 - 2¹ = 55875641 is a prime.

Together with 55875641, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 55875643.

It is not a weakly prime, because it can be changed into another prime (55875641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27937821 + 27937822.

It is an arithmetic number, because the mean of its divisors is an integer number (27937822).

Almost surely, 2^55875643 is an apocalyptic number.

55875643 is a deficient number, since it is larger than the sum of its proper divisors (1).

55875643 is an equidigital number, since it uses as much as digits as its factorization.

55875643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 504000, while the sum is 43.

The square root of 55875643 is about 7475.0012040133. The cubic root of 55875643 is about 382.3028285914.

The spelling of 55875643 in words is "fifty-five million, eight hundred seventy-five thousand, six hundred forty-three".